强直性肌营养不良1型(myotonic dystrophy type 1,DM1)是一种罕见的常染色体显性遗传病,可累及肌肉、心脏、晶状体、内分泌腺、中枢神经系统等。临床分为先天型DM1、儿童型DM1、经典成人型DM1、轻症晚发型DM1共4型。先天型DM1症状重、...强直性肌营养不良1型(myotonic dystrophy type 1,DM1)是一种罕见的常染色体显性遗传病,可累及肌肉、心脏、晶状体、内分泌腺、中枢神经系统等。临床分为先天型DM1、儿童型DM1、经典成人型DM1、轻症晚发型DM1共4型。先天型DM1症状重、病死率高,目前国内仅查到1篇文献报道,且患儿于生后28 d内死亡。本文报告1例目前生长发育良好的先天型DM1患儿的临床特征、DMPK基因检测结果、治疗及随访情况。展开更多
OBJECTIVE: To observe trinucleotide repeat number, (CTG)n in the 3'-untranslated region of the myotonic protein kinase (MTPK) gene in a clinically suspected woman with myotonic dystrophy (DM) family history and he...OBJECTIVE: To observe trinucleotide repeat number, (CTG)n in the 3'-untranslated region of the myotonic protein kinase (MTPK) gene in a clinically suspected woman with myotonic dystrophy (DM) family history and her abortus, in order to confirm the necessity of exerting antenatal examination in patients or suspected individuals with DM family history. METHODS: Long Expand Template polymerase chain reaction (PCR) system was used to analyze CTG trinucleotide repeat numbers located in the 3' untranslated region of MTPK on chromosome 19q13.2-3 in both peripheral white cells and muscles of the suspected mother and the other two DM patients in the family. The tissues of her abortus and blood of a health woman were detected, too. RESULTS: CTG repeats in both peripheral white cells and muscles of the suspected mother and the tissue of abortus were higher than normal range of CTG repeat number. There is no significant difference between blood and muscle samples. High CTG repeats were detected in blood and muscles of the typical DM members in the family, but in the blood sample of control, CTG repeats is normal. CONCLUSION: CTG trinucleotide analyses and antenatal examination should be done in pregnant with a DM family history, in order to reduce the birth rate of DM offspring.展开更多
Objective To observe trinucleotide repeat number, (CTG)n in the 3’-untranslated region of the myotonic protein kinase (MTPK) gene in a clinically suspected woman with myotonic dystrophy (DM) family history and her...Objective To observe trinucleotide repeat number, (CTG)n in the 3’-untranslated region of the myotonic protein kinase (MTPK) gene in a clinically suspected woman with myotonic dystrophy (DM) family history and her abortus, in order to confirm the necessity of exerting antenatal examination in patients or suspected individuals with DM family history. Methods Long Expand TM Template polymerase chain reaction (PCR) system was used to analyze CTG trinucleotide repeat numbers located in the 3’ untranslated region of MTPK on chromosome 19q13.2-3 in both peripheral white cells and muscles of the suspected mother and the other two DM patients in the family. The tissues of her abortus and blood of a health woman were detected, too.Results CTG repeats in both peripheral white cells and muscles of the suspected mother and the tissue of abortus were higher than normal range of CTG repeat number. There is no significant difference between blood and muscle samples. High CTG repeats were detected in blood and muscles of the typical DM members in the family, but in the blood sample of control, CTG repeats is normal.Conclusion CTG trinucleotide analyses and antenatal examination should be done in pregnant with a DM family history, in order to reduce the birth rate of DM offspring.展开更多
文摘强直性肌营养不良1型(myotonic dystrophy type 1,DM1)是一种罕见的常染色体显性遗传病,可累及肌肉、心脏、晶状体、内分泌腺、中枢神经系统等。临床分为先天型DM1、儿童型DM1、经典成人型DM1、轻症晚发型DM1共4型。先天型DM1症状重、病死率高,目前国内仅查到1篇文献报道,且患儿于生后28 d内死亡。本文报告1例目前生长发育良好的先天型DM1患儿的临床特征、DMPK基因检测结果、治疗及随访情况。
文摘OBJECTIVE: To observe trinucleotide repeat number, (CTG)n in the 3'-untranslated region of the myotonic protein kinase (MTPK) gene in a clinically suspected woman with myotonic dystrophy (DM) family history and her abortus, in order to confirm the necessity of exerting antenatal examination in patients or suspected individuals with DM family history. METHODS: Long Expand Template polymerase chain reaction (PCR) system was used to analyze CTG trinucleotide repeat numbers located in the 3' untranslated region of MTPK on chromosome 19q13.2-3 in both peripheral white cells and muscles of the suspected mother and the other two DM patients in the family. The tissues of her abortus and blood of a health woman were detected, too. RESULTS: CTG repeats in both peripheral white cells and muscles of the suspected mother and the tissue of abortus were higher than normal range of CTG repeat number. There is no significant difference between blood and muscle samples. High CTG repeats were detected in blood and muscles of the typical DM members in the family, but in the blood sample of control, CTG repeats is normal. CONCLUSION: CTG trinucleotide analyses and antenatal examination should be done in pregnant with a DM family history, in order to reduce the birth rate of DM offspring.
文摘Objective To observe trinucleotide repeat number, (CTG)n in the 3’-untranslated region of the myotonic protein kinase (MTPK) gene in a clinically suspected woman with myotonic dystrophy (DM) family history and her abortus, in order to confirm the necessity of exerting antenatal examination in patients or suspected individuals with DM family history. Methods Long Expand TM Template polymerase chain reaction (PCR) system was used to analyze CTG trinucleotide repeat numbers located in the 3’ untranslated region of MTPK on chromosome 19q13.2-3 in both peripheral white cells and muscles of the suspected mother and the other two DM patients in the family. The tissues of her abortus and blood of a health woman were detected, too.Results CTG repeats in both peripheral white cells and muscles of the suspected mother and the tissue of abortus were higher than normal range of CTG repeat number. There is no significant difference between blood and muscle samples. High CTG repeats were detected in blood and muscles of the typical DM members in the family, but in the blood sample of control, CTG repeats is normal.Conclusion CTG trinucleotide analyses and antenatal examination should be done in pregnant with a DM family history, in order to reduce the birth rate of DM offspring.
